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(CNN) – Welcome to CNN Radio News Day. Here are some of the stories we're covering in today's show:

Pope Francis says a "gay lobby" exists inside the Vatican

Religion can be a tricky topic for gays and lesbians, but this week the Pope put both religion and homosexuality in the news when he acknowledged there is a "gay lobby" within the Catholic Church. Tommy Andres spoke with CNN Vatican expert and EWTN News Director, Raymond Arroyo who says: "I think he's using this loose handle of 'gay lobby' as a way to sort of get at the corruption that he says at the heart of the Curia."

The Supreme Court rules human genes cannot be patented

Legal and medical experts believe the decision will have a lasting impact on genetic testing. CNN's Lisa Dejardins says analysts believe other labs will likely formulate their own BRCA tests and bring down the price, "so many more women will have access to this and know what their risks are for breast and ovarian cancer. That's a pretty big deal."

Iran prepares for presidential elections: Does it matter?

More than 50 million Iranian voters are eligible to go to the polls Friday to pick a new president. But some analysts believe elections won't make a difference. Patrick Clawson with the Washington Institute for Near East Policy tells CNN's Barbara Hall that's because the supreme leader has the real power: "He is the commander-in-chief, he appoints the intelligence minister, he controls the judiciary and he has the constitutional authority to override any law whatsoever."

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(CNN) – The U.S. Senate has officially begun the debate on immigration reform. However, it is only the last, and perhaps least, vocal step in what is a largely unseen and incredibly massive push and pull immigration from outside the Capitol.

[:43] "I think we should have a massive tweet attack on (Senator) Rubio," 22-year-old Maricela Aguilar suggested to her fellow staffers at United We Dream Wednesday.

The group is made of young Americans who were undocumented until President Obama created his Deferred Action for Childhood Arrivals program that grants temporary waivers to those who were brought into the country illegally as children.